Fallos del tipo CWE-122

3212 resultados

Estouro de heap

É quando o código escreve dados além dos limites de um buffer alocado no heap (memória dinâmica), sobrescrevendo dados de outras estruturas adjacentes. Esse estouro pode corromper metadados do heap, variáveis vizinhas ou objetos do programa, permitindo execução de código arbitrário ou negação de serviço.

Ejemplo

Um servidor web recebe uma string de tamanho arbitrário e a copia para um buffer de 256 bytes sem validar o comprimento (ex: strcpy em C). Se o atacante enviar 500 bytes, o restante escreve além da zona alocada, corrompendo estruturas próximas e potencialmente ganhando controle do fluxo.

Cómo mitigar

Use funções seguras (strncpy, strlcpy, snprintf em C) que respeitam limites de tamanho; valide e sanitize entrada do usuário antes de copiar; ative proteções do SO (ASLR, DEP/NX); use linguagens de memória segura quando possível; aplique verificações de limites em loops de cópia.

CVE-2025-29769HIGHlibvips has a potential heap-based buffer overflow when attempting to convert multiband TIFF input to HEIF outputEPSS 0.3%CVE-2024-42851HIGHBuffer Overflow vulnerability in open source exiftags v.1.01 allows a local attacker to execute arbitrary code via the paresetag function.EPSS 0.3%CVE-2021-25495HIGHA possible heap buffer overflow vulnerability in libSPenBase library of Samsung Notes prior to Samsung Note version 4.3.02.61 allows arbitraEPSS 0.3%CVE-2025-61827HIGHIllustrator on iPad | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-61829HIGHIllustrator on iPad | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-11458HIGHHeap buffer overflow in Sync in Google Chrome prior to 141.0.7390.65 allowed a remote attacker to perform an out of bounds memory read via aEPSS 0.3%CVE-2025-54212HIGHInDesign Desktop | Heap-based Buffer Overflow (CWE-122)EPSS 0.3%CVE-2025-3548MEDIUMOpen Asset Import Library Assimp File types.h Set heap-based overflowEPSS 0.3%CVE-2024-28572MEDIUMBuffer Overflow vulnerability in open source FreeImage v.3.19.0 [r1909] allows a local attacker to cause a denial of service (DoS) via the FEPSS 0.3%CVE-2026-7378MEDIUMHeap-based Buffer Overflow in WiresharkEPSS 0.3%CVE-2025-3549MEDIUMOpen Asset Import Library Assimp File MD3Loader.cpp ValidateSurfaceHeaderOffsets heap-based overflowEPSS 0.3%CVE-2026-70573HIGHWindows Biometric Service Elevation of Privilege VulnerabilityEPSS 0.3%CVE-2026-5867MEDIUMHeap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information EPSS 0.3%CVE-2026-16463HIGHDXF File Parsing Heap-Based Overflow in Autodesk AutoCADEPSS 0.3%CVE-2025-10996MEDIUMOpen Babel smilesformat.cpp ParseSmiles heap-based overflowEPSS 0.3%CVE-2026-5864MEDIUMHeap buffer overflow in WebAudio in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive informatiEPSS 0.3%CVE-2026-6298MEDIUMHeap buffer overflow in Skia in Google Chrome prior to 147.0.7727.101 allowed a remote attacker to obtain potentially sensitive information EPSS 0.3%CVE-2025-10997MEDIUMOpen Babel chemkinformat.cpp CheckSpecies heap-based overflowEPSS 0.3%CVE-2026-5869MEDIUMHeap buffer overflow in WebML in Google Chrome prior to 147.0.7727.55 allowed a remote attacker to obtain potentially sensitive information EPSS 0.3%CVE-2026-14355MEDIUMext/openssl: Memory corruption in openssl_encrypt with AES-WRAP-PADEPSS 0.3%